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Transmission & Drive train

Oil around spark plug boots


This is a discussion on Oil around spark plug boots within the Transmission & Drive train forums, part of the Ford Expedition Forum category!
Just change the plugs and coil packs in my 2000 expedition last night. When I pulled the boots on 3 ...



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Old 04-22-2011, 09:40 AM   #1 (permalink)
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Default Oil around spark plug boots

Just change the plugs and coil packs in my 2000 expedition last night. When I pulled the boots on 3 of the plugs and pulled the socket out with the old plug on it the socket was covered in oil. Only 3 of the cylinders looked like this. Put everything back together and runs fine just wondering where this oil would come from. Any ideas? Thanks
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Old 05-12-2011, 11:41 AM   #2 (permalink)
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Default Oil in Plug Holes

What motor are you working on?
Could be several things:
(1) Oil spillage when changing oil. Oil that gets spilled on to the valve cover and the intake can seep into the plug holes.
(2) Valve Cover gasket: If gasket on the valve cover is leaking on the intake side, oil can seep into the plug holes.

I just fix the same problem on my 2000 Expedition by replacing the valve cover gaskets. It was a real pain in the azz!
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